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<?php var_dump((new \DateTime('last day of last month'))->format('Y-m-d'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/RCavi
function name:  (null)
number of ops:  10
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
          1        NEW                                              $0      'DateTime'
          2        SEND_VAL_EX                                              'last+day+of+last+month'
          3        DO_FCALL                                      0          
          4        INIT_METHOD_CALL                                         $0, 'format'
          5        SEND_VAL_EX                                              'Y-m-d'
          6        DO_FCALL                                      0  $2      
          7        SEND_VAR                                                 $2
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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